PUBLICATION: CAPTCHA smuggling : Hijacking web browsing sessions to create CAPTCHA farms
© ACM, 2010. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in SAC 2010, 25th ACM Symposium On Applied Computing, March 22-26, 2010, Sierre, Switzerland http://dx.doi.org/10.1145/1774088.1774483
